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Winscope has anyone used it?

Discussion in 'Electronic Repair' started by gorehound, Sep 16, 2006.

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  1. gorehound

    gorehound Guest

    I don't have an oscope that works, but I was wondering if anyone has used
    Winscope. Actually I have a TDS210 that doesn't work and would like to check
    the crystals and was wondering if this software would suffice. I checked the
    power supply voltages with my DMM and all of the voltages check out, but I
    definately need a scope to check some of the other stuff. If anyone knows of
    any other software besides this I would be happy to know about it too.

    Thanks
    Shane
     
  2. What sort of signal frequencies? AFAIK, Winscope etc don't go much over 2
    Mhz but maybe that was then.
     
  3. Homer J Simpson spake thus:
    Since Winscope uses the sound card, you'd be limited by the ADC's upper
    frequence limit, no?


    --
    Napoleon won the battle of Waterloo. The German Wehrmacht won World War
    II. The United States won in Vietnam, and the Soviets in Afghanistan.
    The Zealots won against the Romans, and Ehud Olmert won the Second
    Lebanon War.

    - Uri Avnery, Israeli peace activist
    (http://counterpunch.org/avnery09022006.html)
     
  4. Guest

    Yes it works. OSC251 by Konstantin Zeldovich is more reliable imho.
    These software scopes are well featured but basic specced, the
    soundcard maxes out at around 20kHz and theres no dc path.

    NT
     
  5. DaveM

    DaveM Guest

    Sound card 'scope software is grossly rudimentary. The vertical axis can't be
    calibrated unless you have a known AC voltage reference available, that has
    outputs at the levels that you're interested in measuring. As has been pointed
    out, the vertical bandwidth is severely limited by the bandwidth of your sound
    card. Bear in mind that the sound card uses a sampling algorithm to convert the
    input signal into a digital response pattern. If you're looking at anything
    close to a square wave, be prepared for severe distortion when viewing the
    signal. And there is no DC coupling available unless the sound card is DC
    coupled, which is highly unlikely.
    Unless the crystals that you want to check are in the audio region, forget about
    software 'scopes. Useless for that.
    That's not to say that they serve no purpose at all... they can be very useful
    when analyzing low-level audio. Good software can turn your PC into an
    inexpensive audio spectrum analyzer, frequency response test set, etc. Just be
    aware of the limitations.

    --
    Dave M
    MasonDG44 at comcast dot net (Just substitute the appropriate characters in the
    address)

    Some days you're the dog, some days the hydrant.
     
  6. Guest

    easy enough to hook 2 Rs onto a transformer, along with a multimeter.
    No point trying to get these soundcard scopes 1% accurate.
    you mean due to loss of frequencies above 20kHz? Or something else.


    Despite their patchy tech specs they can be handy things. Their other
    issue is that soundcards have no input protection, so its a good idea
    to use a buffer if you want to use one of these scopes on an ongoing
    basis.


    NT
     
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